spelling fix

[dbsrgits/DBIx-Class.git] / lib / DBIx / Class / ResultSource.pm

diff --git a/lib/DBIx/Class/ResultSource.pm b/lib/DBIx/Class/ResultSource.pm
index 0a5e94b..8e8da7f 100644 (file)
--- a/lib/DBIx/Class/ResultSource.pm
+++ b/lib/DBIx/Class/ResultSource.pm
@@ -201,7 +201,7 @@ schema, see L<DBIx::Class::Schema/deploy>.
 
    { is_nullable => 1 }
 
-Set this to a true value for a columns that is allowed to contain NULL
+Set this to a true value for a column that is allowed to contain NULL
 values, default is false. This is currently only used to create tables
 from your schema, see L<DBIx::Class::Schema/deploy>.
 
@@ -627,7 +627,7 @@ sub primary_columns {
 # a helper method that will automatically die with a descriptive message if
 # no pk is defined on the source in question. For internal use to save
 # on if @pks... boilerplate
-sub _pri_cols {
+sub _pri_cols_or_die {
   my $self = shift;
   my @pcols = $self->primary_columns
     or $self->throw_exception (sprintf(
@@ -638,6 +638,20 @@ sub _pri_cols {
   return @pcols;
 }
 
+# same as above but mandating single-column PK (used by relationship condition
+# inference)
+sub _single_pri_col_or_die {
+  my $self = shift;
+  my ($pri, @too_many) = $self->_pri_cols_or_die;
+
+  $self->throw_exception( sprintf(
+    "Operation requires a single-column primary key declared on '%s'",
+    $self->source_name || $self->result_class || $self->name || 'Unknown source...?',
+  )) if @too_many;
+  return $pri;
+}
+
+
 =head2 sequence
 
 Manually define the correct sequence for your table, to avoid the overhead